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Community Library Entry
12
Regular Expression
ECMAScript (JavaScript)
/
^
(?=
.
{3,20}
$
)
(?!
[
_.-
]
)
(?!
.
*
[
_.-
]
{2}
)
[
a
-
zA
-
Z0
-
9_-
]
+
(
[^
._-
]
)
$
/
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Description
no description available
Submitted by
Gianvy
-
10 years ago